Does any one know what this sound is?

[ch3csc]

Weird sound from my climate control (T-Jet 150) when it is switched off and sometimes (but not always) when it's on...

Did upload a video but didn't work - it's a strange on-off buzzing sound coming from behind the climate control unit..

 

[lm04]

Climate Control is different from Air Con. What you will probably hear is clicking and whirring coming from the blend doors reset themselves to rest. They will adjust for quite some time afterwards. Not uncommon and nothing to worry about. You car will pop into 'sleep' mode after 20 mins anyway so it won't go on all night.